Hanger block clamps for castable roof structures



April 10, 1962 w. B. SMITH 3,029,055

HANGER BLOCK CLAMPS FOR CASTABLE ROOF STRUCTURES Filed Jan. 15, 1960 2Sheets-Sheet 1 IN VEN TOR. m4 ,6. JMLa! April 10, 1962 w. B. SMITH3,029,055

HANGER BLOCK CLAMPS FOR CASTABLE ROOF STRUCTURES Filed Jan. 15, 1960 2Sheets-Sheet 2 IN VEN TOR. maezmd 5.5mm

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United States Patent 3,029,055 HANGER BLOCK CLAMPS FOR CASTABLE ROOFSTRUCTURES Willard B, Smith, 64 Church St., Jackson, Uhio Filed Jan. 15,1960, Ser. No. 2,763 3 Claims. (Cl. 248-228) This invention relates tonew and useful improvements in hanger blocks for castable refractorymaterials and more particularly to the brackets or clamps for mountingthe same.

It is among the objects of this invention to provide a tong-type hangarbracket for supporting refractory hanger blocks from I-beams or channelsto form the roof of an industrial heating furnace or the like.

It is a further object of the invention to provide such a tong-shapedsuspension member which shall be adapted to interlock with the flangesof the hanger blocks and I-beams to be adjustably mounted on the latter.

These and other objects of the invention will become more apparent froma consideration of the accompanying drawings constituting a part hereofin which like reference characters designate like parts and in which:

FIGURE 1 is an end elevational view, partially in section, of a portionof a hanger block and I-beam with the hanger block suspension bracketinterlocked therewith;

FIGURE 2 is a side elevational view taken at right angles to the view ofFIGURE 1;

FIGURE 3 an isometric view of the hanger block suspension bracketembodying the principles of this invention;

FIGURE 4 a top plan view showing the clamping bracket in its partiallyassembled position with one of the parts inserted through a slot in theother part and with its longitudinal axis disposed 90 from the axis ofsaid other part;

FIGURE 5 a view in perspective of a hanger block; and,

FIGURE 6 a vertical section elevational view diagrammaticallyillustrating a roof structure made of a castable refractory material.

With reference to FIGURE 6 of the drawing, the numeral 1 generallydesignates a monolithic roof made of a castable refractory material madeof calcine clay and conglomerate, together with a binder such as wateror a sodium silicate solution, the entire monolithic roof beingsuspended from I-bearns 2 that constitute the superstructure of theroof. In building such castable roof sections, hanger blocks such as theblock 3 are suspended from the I-beams 2 by clamping brackets generallydesignated by the numeral 4. The hanger blocks 3 are provided withgrooves 5 that form flanges on which the castable roof material issupported.

The present invention deals with an improved form of hanger bracket 4which is shown in FIGURES 1, 2 and 3 of the drawing and which consistsof a pair of steel strips designated by the numerals 6 and 7 havingoppositely disposed flanges 8 and 9 and 10 and 11, respectively. Themember 6 is provided with a slot 12 of a size to permit the insertion ofthe flange 10 of the strip member 7, as shown in FIGURE 4 of the drawingand slot 12 is of a width that will permit turning the member 7 90 fromthe position shown in FIGURE 4, as indicated by the arrow to bring theflanges 8 and 10 in alignment in the manner shown in FIGURE 3 of thedraw- 3,029,055 Patented Apr. 10, 1962 ing. In this position, theflanges 9 and 11 are also in alignment for engaging the top flange 13 ofthe hanger block in the manner shown in FIGURE 1 of the drawing. Thewide flanges 8 and 10 engage the oppositely disposed flanges 14 and 15of the I-beam 2, as shown in FIGURES l and 2, to effect an interlockingengagement of the hanger block 3 with the I-beam 2.

The advantage of the interlocked type of hanger block clamp is apparentfrom the fact that it allows adjustment of the block on the I'beams 2 toeither stagger the blocks on one I-beam or maintain alignment thereofwith the blocks on adjacent I-beams, there being a closely spaced seriesof blocks in each of the rows of blocks, as viewed in FIGURE 6 of thedrawing.

As shown in FIGURE 4, a filet 16 is provided on the flanges 11 and 9 toengage the side of the hanger block 3 in the manner shown in FIGURES 1and 2.

The interlocked construction of the strips 6 and 7 allows forreplacement in case of repairs; that is to say, if one of the hangerblocks is broken out of a wall, a new clamping bracket can be insertedin place without sliding it from the end of the I-beam, as would benecessary if the parts were not insertable in the manner demonstrated inconnection with FIGURE 4 of the drawing.

Although one form of hanger block has been disclosed, it is apparentthat any shape of hanger block can be employed with the clamps as longas they have a flange portion 13 for engaging the flange elements 9 and11 of the clamping bracket.

Although one embodiment of the invention has been herein illustrated anddescribed, it will be evident to those skilled in the art that variousmodifications may be made in the details of construction withoutdeparting from the prinicples herein set forth.

I claim:

1. A clamp for supporting hanger blocks for castable roof structurescomprising a pair of substantially S-shape disjointed tongs havingflanges at one end for engaging oppositely disposed shoulders of ahanger block and having flanges at their other ends for engaging thehorizontal extending flanges of an I-beam, said tongs having strap-likebody portions one of which is wide and slotted and the other isrelatively narrow and of a width to fit into the slot of saidfirst-named tong the length of the slot being greater than the width ofthe tong ends to allow for the insertion of said ends into said slot andturn the same to effect interlocking engagement of said flanges withtheir respective blocks and I-beams.

2. Hanger block clamps as set forth in claim 1 in which the flanges onopposite ends of the tongs are inverted so that pressure on the bottomflanges will urge the top flanges into clamping engagement with theI-beam flanges.

3. A clamp as set forth in claim 1 in which the bottom clamps areprovided with projecting lugs for engaging opposite faces of said hangerblocks.

References Cited in the file of this patent UNITED STATES PATENTS GreatBritain Aug. 5, 1948

